Self-threading thread-tension device for shuttles



APPLICAHDN HlED OCT 3,1921

Patented Nov. 28, 1922.

Patented Nov. 28, 1922.

UNITED STATES I PATENT OFFICE.

sn'nurmn SIX, OF MILTON, PWYLVANIL, ABSIGNOR 1'0 SUBQUEHANNA SILK HILLS, OF NEW YORK, ll; Y., A. GOBIORA'IION OF NEW YQBK.

BEEF-WING THREAD-TENSION DEVICE FOR BHU'ITLES.

Application fllcd'oetoberl, 1921. Serial lilo. 805,061.

Toallwhomitma concern:

Be it known that I. Euro-rm 81:, a sublject of the King of Bel um, residing at Mi ton, in the count of orthumberland t and State of Pennsy vania, have invented certain new and useful Improvements in Self-Threadin ThreadTension Devices for Shuttles, of w oh the following is a specification, reference being bad therein to the 7 accompanyi drawings.

This inven on relates to a lf-threading thread tension device for shuttles, and the object of the invention is the construction of a simple and efficient tension device for automatic shut es, whereb the thread from the bobbin wi fall into block and the tension device as soon as pick of the shuttle is started.

With this and other objects in view, my invention comprises certain novel combinations, constructions and arrangements orfl parts as will be hereinafter described, il-

ustrated in the accompanying drawings, and more particularly pointed out in the appended claims.

In the drawings:

Figure 1 is a fragmentary, perspective view of a shuttle body, showing my tension device ap thereto. eo to is a sectional view takyn on has 2-2, Fig. 1, and looking in the direction of the arrows. 1

the

85 construction of my tension device;

Figure 4 is a 'veview of one of the e merits or meat of-the present invention, while Figure 5 l8 s top plan view of the same.

Fi 8 is .a perspective view of still zinc or embodiment of the present inven- Referri to the draw numerals, 1 designa t s a shuttle-bo d? tho bobbin therein, and 8 is the threader block.

the referrred embodiment of my mvention (l igs. 1to3),Iem oytwo elements or blocks 4 and 5; these oclrs are preferably rectangular in shape and each. blooir,

so near its lower end, is provided with a panof transverse, horizontal apertures 6, thro which a pair of pins or rods 7 extendese rods extend transversely through the shuttlediody 1,near its bottom, and prefit erably between the bobble 2 and the th the threader' length of another embodi- -w1re frames 15, extendin threader block 3, Fig. 1. The upper, inner face of each member or block 5 1s beveled at 8 to allow the thread 9, from the bobbin 2, to readily fall in between the blocks 4 and 5; Block 4 i preferably fastened by any suitable. means such as ueyagainst the shuttle-body, whereas bloc 5 is m mine laterally away from-block 4 upon the rods A ring-receiving socket 10 is formed in the b ock 5 and a sprin 11 is seated at one end in the socket 10; t e other end of the spring bears against the shuttle-bod 1, and this spring normally holds blood 5 against block 4.

I use the term blocks in designating the elenuants 4 and 5 in a broad sense, as these blocks may be styled jaws, or clamping elements, or the like, and I do ,not limit myself to any specific kind of material in constructing be noted that the standard threaded block ,has a longitudinal slot 12 extending .80

throughout its length, and the tension device is also rovidedwith a longitudinallyextendin 0t 13 extending throughout its e two slots 12 an 18 register and open free 11 n the .upper face ofthe shuttlebod where y the thread 9, from the'bobbin, ill fall into both automatically as soon as the icl: of the shuttle has started. In the em diment-shown in Figs. 4 and. 6, I have illustrated structure what might be termed a. weshboard tension device, inmuch as both theblochh 4 and .5 are vertically corrugated at 14, the corrugations have rounded outer surfaces and to toinner upper surfaces of the blocks.

the embodiment shown in Fig. 6, the thread 9 passes between substantially looped inwar y from; the inner faces of the b cs 16 that an rtthesewireframes 15 upontherods will be noted that the frames are eed apart onf each hlldock'or body 16 anth the mas 0 one y are staggered wi rea st to the frames of the other bodiy, so that e frames of one-body will exten between the frames of the other body' whereby the thread will be firmly grip e While I have described. e preferred embodiments of my invention, and have dies- :10

trated the same in the accompanying drawings, certain minor changes or alterations may appear to one skilled in the art to which this invention relates, during the extensive manufacture of the same, and I therefore, reserve the right to make such alterations or changes .as shall fairly fall within the scope of the appended claims.

What I cla m is:

1. In a; device of the character described, the combination'of a shuttle body, a pair of substantially rectangular blocks positioned in said body, means for slidably supporting Said blocks, means for urging said blocks together, the inner lower surfaces of said blocks bein corrugated vertically, the corrugations aving rounded surfaces and taperin toward their u per portions so as to and; mer in the at inner upper surfaces of the b ocks.

2. In a device of the class described, the combination of a shuttle body, a pair of substantially rectangular blocks itioned in said body, a pair of arallel, orizontal rods in the lower part 0 the body and extending throu h the lowerportions of the blocks, one .b ock fixedly secured against movement upon said rods and the other block bein slidahly mounted on the rods, said sli'dab y mounted block provided with a sprin seat in its outer surface, said body provi ed contiguous to said slidablymounted block with a straight wall, a coil spring seated at one 'end in said spring seat and hearing at its other end against said straight wall, and said spri being held in an operative position by said spring seat.

In testimony whereof I hereunto ailix my signature.

ELEUTHERE SIX. 

